VAN GENNIP or REICH for math33B? Liggett for Math170a?

<p>I looked up bruinwalk but there are no comments on VAN GENNIP and REICH. Has anyone taken VAN GENNIP or REICH for math? Which professor should I get for math33B?
I also want to take math170A with Liggett next quarter since it’s not offered in the spring. Has anyone here taken a class with him, and would comment on his class? Thanks.</p>